Flush-tank valve.



J. D. ROCKEY.

FLUSH TANK VALVE. APPLICAUON FILED NOV. 18, I914.

mmsw.

Patented Apr. 4,1916.

JESSE D. ROGKEY, 015 DETROIT, MICHIGAN.

FLUSH-TANK VALVE.

Specification of Letters Patent.

Patented. Apr. 1, 1916.

Application filed November 18, 1914. Serial No. 872,800.

To all whom 2'25 may concern:

Be it known that I, Jns'sn D. RooKEY, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Flush-Tank Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable 19 others skilled in the art to which it apper tains to make and use the same.

This invention relates to flush tank valves, and one of the principal objects of the invention is to provide a valve which will operate smoothly under varying conditions, and which will be seated when the tank is practically full of water, and which will be unseated against the pressure of. the water when the tank is exhausted.

Another object of the invention is to provide a flush tank valve which will be practically noiseless in operation and which will operate smoothly and which will not be provided with rubber ball valves or a large number of packings and gaskets to get out of order.

The foregoing and other objects may be obtained by means of the construction illustrated in the accompanying drawing, in

which- Figure 1 is a sectional view through the tank and showing the valve in side elevation, and Fig. 2 is a view in vertical section of the valve and connecting parts.

Referring to the drawing, the numeral 1 designates a flushing tank and 2 is the water supply pipe extending through the bottom of the tank, said supply tank being connected to an elbow 3 having an integral '0 face plate or flange 4:, which is secured to a similar flange or face plate 5 by means of a plurality of thumb screws 6, there being a packing 7 between the flanges 4 and 5, and the face plate 5 being provided with interior screw threads 6 for connecting it to the exterior screw thread 7 of the valve casing 8. The valve casing S is provided with a bore 9 and an interior chamber 10, said chamber having the filling pipe 11 connected 59 to the lower end thereof, and an air chamber 12 at the upper end thereof.

A valve stem 13 having a ball valve 14E connected thereto which is seated against the outer end of the valve casing 8 is connected at its opposite end to a sliding piston 15 mounted in a smooth portion 16 of the valve casing. A gasket or packing 17 is secured at the mner end of the bearing for the piston 15 and the rod 13 bears against said packing.

An arm 18 formed integral with the air chamber 12 has pivoted to it an elbow lever 19 pivoted upon a thumb screw 20. The arm 19 has a socket 21 in which the float rod 22 is secured by the thumb screw 28. The float rod 22 is provided with a curved portion 24: and an upwardly extending terminal end 25 on which the float ball 26 is connected. The elbow lever 19 is provided with a member 19 and pivoted at 27 to the member 19 is a link 28, said link being pivoted at 29 to a cam lever 30 which extends through a slot in the member 16 and is pivoted at 81 to an extension from said member. A downwardly curved afterfill pipe 32 is connected to the valve casing 8, at a.

The operation of the invention may be briefly described as follows: When the water is low in the tank and the ball 26 has clescended to its lowermost position, the elbow lever 19 is moved to draw the link 28 toward the left in Fig. 2 to push the ball valve 14 from its seat and permit the water to flow through the supply pipe and through the valve casing into the filling pipe 11 and from said pipe into the tank. When the ball 26 rises, the valve 14 is gradually closed upon its seat and assisted by the force of the water. The afterfill pipe 32 will dis charge a small quantity of water into the bowl when the tank is practically empty.

Various changes may be made in the details of construction without departing from the spirit and scope of the invention as defined in the claim.

WVhat is claimed is In a float operated valve for tanks, a supply pipe extending up through the bottom of the tank, an elbow secured to its upper end, said pipe being provided at its free end with an annular flange, a valve casing provided with vertically and horizontally intersecting bores forming a chamber at their inner ends centrally of the casing, an annular flange fitted on the end of said casing exteriorly of the horizontal bore securing the same to the flange of the elbow, the outer end of said horizontal bore forming a valve seat, a pipe fitted in the lower vertical bore communicating with the chamber, a valve stem in the horizontal bore, a valve carried on one end of said valve stem and seated against the valve seat for closing said horizontal bore, a piston slidably mounted in said horizontal bore and connected to the other end of said stein, an arm formed on the upper end of said vertical bore, an elbow lever pivotally secured to said arm, a float carried by one end of said elbow lever, operating members carried by the other end of said elbow lever, said operating members comprising a cam, links connecting the cam to the elbow lever, said cam cooperating in the piston whereby upon downward movement of the float arm the piston will move the valve from the valve seat and allow the tank to be filled.

In testimony whereof I aifix my signature in presence of two witnesses.

JESSE D. ROOKEY. Witnesses:

DORA RooKEY, EVELYN CROSBY.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner o1 Iatents,

Washington, 1). c." 

